TDI LOST POWER

kell3

Member
Joined
Mar 18, 2003
Location
pa
TDI
jetta 99.5 black
i have a 99.5 jetta tdi with 82,000 on it and it loses power going up hills it dosent do it all the time but it dose it alot pleas help!!!!!!!!!
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GoFaster

Moderator at Large
Joined
Jun 16, 1999
Location
Brampton, Ontario, Canada
TDI
2006 Jetta TDI
Read the TDIFAQ troubleshooting section. There are many potential causes, and further investigation WILL be required to identify and/or rule out potential causes.
 

VelvetFoot

Top Post Dawg
Joined
May 17, 2001
Location
Sand Lake, NY
TDI
NB, 2000, Yellow
First, you should read the tdifaq above on loss of power; really.

Here's my opinion:
If your power does not return, say if you are on a hill, when you turn off the engine and then restart, then it likely has something to do with your intake. Your intake could be blocked or it could be your maf. I would examine the egr valve by removing the clamp at the valve, pulling the hose, and looking inside. If it is really choked with black gunk, that could cause your loss of power. If you remove the electrical connector to the MAF, and a good chunk of your power returns, then I would say it is likely your MAF. (Note that the CEL will light. It should eventually go away after it is hooked up again, but I'm not sure when or indeed if it will without getting it cleared.)
 
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